Soaking-furnace for ingots



(No M0del 3 Sheets-Sheet 1. T. CRITOHLOW.

SOAKING FURNACE FOR INGOTS.

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(No Model.)

T; ORITCHLOW. SOAKING FURNACE FOR INGUTS.

No. 278.512. Patented May 29,1883.

Paolo-Lithograph. Washingmn. n. c

3 Sheets-Sheet 3 T. GRITGH LOW.

SOAKING FURNACE FOR INGO'I'S.

(No Model.)

No. 278,512. Patnted May 29,1883,

77kt: es .51 a.

u. FEIERS, mumm hen Washington. a. c.

* 1' 'UNITED STATES PATENT OFFICE.

THOMAS .OBITOHLOW, or rrrrsnoae. PENNSYLVANIA."

SOAKING-FURNACE FORINGOTS.

SPECIFICATION forming part of Letters Patent No. 278,512, dated May 29,1883.

Application filed January 4, (No model.)

To all whom it may concern:

Be it known that I, THOMAS CRITGHLOW, of

Pittsburg, in the county of Allegheny, and in the. State ofPennsylvania, have invented'cer tain new and useful lmprovements inSoaking- Furnaces for Ingots; and I do hereby declare that the followingis a full, clear, andexact description thereof, reference being bad tothe accompanying drawings, and to the letters of reference markedthereon, making a part of this specification.

- This invention relates to certain improve- Ordinarily it has beencustomary to strip the ingots .after being cast, and to put them asidein the open air or in suitable pits until required for use. The ingotsat the time they are taken from the mold, as above intimated, have alarge amount of internal heat,which is lost while they are putaside forfurther treatment. By my invention-all this heat, which has hithertobeen wasted, is utilized, and the storage-room heretofore required is.to a great extent dispensed with, permitting the ingots These objects Iattain by the means illustrated in the accompanying drawings, in which-Figure lrepresents a view, partly in sec tion and partly in elevation,showing'my invention, and illustrating the ingot as it is about to bemoved from the mold and inserted inthe soaking-furnace. view of myinvention, partly in vertical section and partly in side elevation,showing the ingot as it is passing out of the soaking-furnace onto theblooming-table rollers, or the rollers for conveying the ingots to thehammer; and Fig. 3 represents a view, partly in sectioniand partly inside elevation. showing my improved soaking furnace in detail.

The letter A indicates a bed ofmasoury or any other suitable support,which is provided Fig. 2 represents with a metallic bed, B, upon whichthe mold C may be placed. I a

The letter D indicates a horizontal hydraulic press, whichis secured tothe bed A or otherwise located so that its plunger E will be in linelongitudinally with the mold, as indicated in Fig. l of the drawings,and can be projected into the mold to discharge the ingot as required.has an upright abutment, F, against which one end of the mold sets, inorder to confine it to the bed as the ingot is forced out. The saidabutment has an opening, G, through which the ingot passes on its way tothe soaking-furnace. The letter H indicates a portable soaking furnace,which consists of a metallic frame of suitable construction mounted uponaxles I, having flanged wheels K, which are adapted to travel upon railsor tracksL. The said furnaceis lined and roofed with refractorymaterialsuch as fire-brick-and is provided with openings M, havinghinged doors N at opposite sides for the insertion and removal of Themold-bed at its forward end era-bl y employed, the openings being formedin laying the bricks in such manner as to leave spaces between certainof the bricks, as indicated-in Figs. 1 and 3 of the drawings. In orderto provide for heatingthe furnace, if it' I should be found necessary,the compartment atone end is provided with'an opening, It, by means ofwhich the heated gases from a stationary furnace may be introducedthrough any suitable conductor. The compartment at the opposite end ofthe soaking-furnace is provided-with a similar opening, through whichthe spent products of combustion may'pass off. The doors are opened andclosed by means of a seriesof rods, S, and arms T, the arms havingconnected to them the links U, which are also connected to lugs V on thedoors. The rods are journaled in suitable bearings, W, at theupper sidesof the furnace, and at their ends are squared for the application of awrench or key by means of which they may be turned to open or close thedoors. i

The letter X, Fig. 2, indicates the'bloomingrolls table, upon which theingots are discharged and from which they are conveyed to g theblooming-rolls or to the hammers, a by- 5 draulic press similar to theone already men- I respect to the pass in proper position on thefeed-tables, to be advanced to the pass and rolled. It will thus appearthat by my invention the molds in which the ingots are cast are indirectcommunication with the bloomingrolls or with the reducing-hammeremployed for operating upon the ingot, during its marketable reduction,the line of rails L leading from such molds to the place of location ofthe said rolls or hammer. By reason of the free communication betweenthe several compartments of the furnace through the apertures in thedividing-walls thereof, before alluded to herein, aperfect equalizationand distribution of the heat emitted from the respective inclosed ingotsis effectually obtained, as well as a communication of the heat-chargingaperture R with the discharging aperture, the result of which quality ofcommunication is to give to the ingot first put into the furnace thebenefit of the heat given out by those subsequently put in.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

1. In machinery for the manufacture of-iro and steel, the combination ofthe hydraulic press, with a mold containing the ingot and a heating-furnace having side openings and doors, the longitudinal axes of thepress and the mold being in line with the chamber of the furnace,whereby the ingot may be discharged from the mold, forced into andinclosed in the furnace-chamber, as and for the purpose set forth. 2. Inmachinery for the manufacture of iron and steel, the combination of theingot-mold,

its bed constructed to hold the mold against displacement and to admitof the discharge of the ingot, and the portable soaking-furnace providedwith communicating chambers and with door-openings and doors initssides, with the hydraulic press and piston adapted to extend into themold and force the ingot therefrom into the furnace, in the manner andfor the purposes set forth.

3. The combination, in a portable soakingfurnace, of the perforatedpartitions or divid-- ing-walls and theinduction and eductionopenings,substantially as specified.

4. The combination, with the portable soak- I ing-furnace, of the doorsand the bars and links, whereby they may be opened and closedindependently of each other, substantially as specified.

5. In machinery for the manufacture of iron and steel, the combinationof the hydraulic press and the ingot-moldlocated'in line thereing thesame, and the hydraulic press and itspiston, the said furnace beingadapted to be so placed as to bring its respective chambers in line withthe pass inthe rolls, andthe press being located approximately in linewith the pass, whereby the ingot is discharged in position to be actedupon, substantially as described.

7. An ingot-soaking furnace having its top, bottom, and ends closed andprovided with a series of horizontal cells or chambers, each having adoor and being approximately of thesize of the ingot and adapted tocommunicate with each other, the top being provided with induction andeduction openings, substantially as described.

In testimony whereof I affix my signature,- in presence of twowitnesses, this 1st day of January, 1883.

THOS. GRITCHLOW.

Witnesses JOHN S. KENNEDY, ROBT. S. YOUNG.

